package ooday01;
//构造方法的演示
public class ConsDemo {
    public static void main(String[] args) {
        Student zs=new Student();
        zs.name = "";
        zs.age = 24;
        zs.className = "";
        zs.stuId = "";
        Student ls=new Student("李四",24);
        Student ww=new Student("王五",26,"","");
        zs.sayHi();
        ls.sayHi();
        ww.sayHi();

    }
}
